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pNFS/flexfiles: Check the layout validity in ff_layout_mirror_prepare_stats
authorTrond Myklebust <trond.myklebust@hammerspace.com>
Sun, 8 Oct 2023 18:28:46 +0000 (14:28 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 25 Oct 2023 10:03:14 +0000 (12:03 +0200)
commitab65424d618b4398ba0a72570be4f27f787cae8d
treeda08a142cac5945dad87f19e6f9d6c07e9fcf4f0tree
parent730bbbbe16b7a9a870c2d9486b04798748826554commit | diff
pNFS/flexfiles: Check the layout validity in ff_layout_mirror_prepare_stats

commit e1c6cfbb3bd1377e2ddcbe06cf8fb1ec323ea7d3 upstream.

Ensure that we check the layout pointer and validity after dereferencing
it in ff_layout_mirror_prepare_stats.

Fixes: 08e2e5bc6c9a ("pNFS/flexfiles: Clean up layoutstats")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/nfs/flexfilelayout/flexfilelayout.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git